diff --git a/board/aime-dll.c b/board/aime-dll.c
index 0ada7f4b..465fcfde 100644
--- a/board/aime-dll.c
+++ b/board/aime-dll.c
@@ -51,7 +51,7 @@ HRESULT aime_dll_init(const struct aime_dll_config *cfg, HINSTANCE self)
 
         if (owned == NULL) {
             hr = HRESULT_FROM_WIN32(GetLastError());
-            dprintf("NFC Assembly: Failed to load IO DLL: %x: %S\n",
+            dprintf("NFC Assembly: Failed to load IO DLL: %lx: %S\n",
                     hr,
                     cfg->path);
 
diff --git a/chunihook/chuni-dll.c b/chunihook/chuni-dll.c
index 24efa5c4..c98a9de2 100644
--- a/chunihook/chuni-dll.c
+++ b/chunihook/chuni-dll.c
@@ -57,7 +57,7 @@ HRESULT chuni_dll_init(const struct chuni_dll_config *cfg, HINSTANCE self)
 
         if (owned == NULL) {
             hr = HRESULT_FROM_WIN32(GetLastError());
-            dprintf("Chunithm IO: Failed to load IO DLL: %x: %S\n",
+            dprintf("Chunithm IO: Failed to load IO DLL: %lx: %S\n",
                     hr,
                     cfg->path);
 
diff --git a/divahook/diva-dll.c b/divahook/diva-dll.c
index 2f5793ee..c24cf01e 100644
--- a/divahook/diva-dll.c
+++ b/divahook/diva-dll.c
@@ -57,7 +57,7 @@ HRESULT diva_dll_init(const struct diva_dll_config *cfg, HINSTANCE self)
 
         if (owned == NULL) {
             hr = HRESULT_FROM_WIN32(GetLastError());
-            dprintf("Diva IO: Failed to load IO DLL: %x: %S\n",
+            dprintf("Diva IO: Failed to load IO DLL: %lx: %S\n",
                     hr,
                     cfg->path);
 
diff --git a/idzhook/idz-dll.c b/idzhook/idz-dll.c
index 2ebc75b5..eb1b6e1e 100644
--- a/idzhook/idz-dll.c
+++ b/idzhook/idz-dll.c
@@ -51,7 +51,7 @@ HRESULT idz_dll_init(const struct idz_dll_config *cfg, HINSTANCE self)
 
         if (owned == NULL) {
             hr = HRESULT_FROM_WIN32(GetLastError());
-            dprintf("IDZ IO: Failed to load IO DLL: %x: %S\n",
+            dprintf("IDZ IO: Failed to load IO DLL: %lx: %S\n",
                     hr,
                     cfg->path);
 
diff --git a/idzio/dllmain.c b/idzio/dllmain.c
index 32619cb7..278c8c2b 100644
--- a/idzio/dllmain.c
+++ b/idzio/dllmain.c
@@ -34,7 +34,7 @@ HRESULT idz_io_jvs_init(void)
 
     if (inst == NULL) {
         hr = HRESULT_FROM_WIN32(GetLastError());
-        dprintf("GetModuleHandleW failed: %x\n", hr);
+        dprintf("GetModuleHandleW failed: %lx\n", hr);
 
         return hr;
     }
diff --git a/mu3hook/mu3-dll.c b/mu3hook/mu3-dll.c
index 15ed6bbf..9e8e93ee 100644
--- a/mu3hook/mu3-dll.c
+++ b/mu3hook/mu3-dll.c
@@ -51,7 +51,7 @@ HRESULT mu3_dll_init(const struct mu3_dll_config *cfg, HINSTANCE self)
 
         if (owned == NULL) {
             hr = HRESULT_FROM_WIN32(GetLastError());
-            dprintf("Ongeki IO: Failed to load IO DLL: %x: %S\n",
+            dprintf("Ongeki IO: Failed to load IO DLL: %lx: %S\n",
                     hr,
                     cfg->path);